If every society collapsed tomorrow in an apocalyptic event...

Are you underage or a high-school dropout? How do you not know about the applications and practicality of calculus?

Is this hoarding behavior?

I would say yes.
It's better than hoarding plastic bags that you shat into, but it's still hoarding.

They'd be fine, because i have pic related

Attached: Fruit Trees.jpg (350x499, 36K)

They would turn neo-feudal with complete devotion to chivalric ideals found in Arthurian romance.
So the best possible outcome.